#!/bin/sh
################################################################################
## Monolith Toolkit for MySQL
## NAME: mt-cluster-node-wrapper.sh
## DATE: 2008-10-01
## AUTHOR: Matt Reid
## WEBSITE: http://monolith-mysql.com && http://themattreid.com 
## EMAIL: themattreid@gmail.com
## LICENSE: BSD http://www.opensource.org/licenses/bsd-license.php
################################################################################
## Copyright 2008 Matt Reid
## All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
#    derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
##################################################################################
#
## WHAT THIS SCRIPT DOES #########################################################
#USE THIS AS A WRAPPER TO RUN various scripts on a RedHat Cluster environment
#Example: This ensures we only run mt-backup-parallel.pl on the active node
#Reqs: You'll need to install this script on each node and run it from crontab
# On each node, specifiy the correct node's hostname MYHOST="" as it shows up in clustat
##################################################################################

#mysql_service        iadopsmysqlclustdb01p          started

MYHOST="iadopsmysqlclustdb01p" 
HOST_STATE=`clustat | tail -n 1 | awk {'print $2'}`
SERV_STATE=`clustat | tail -n 1 | awk {'print $3'}`
DATE=`date +'%c'`
LOG="/var/log/mt-cluster-node-wrapper.log"

echo "DATE: $DATE"
echo "HOST_STATE: $HOST_STATE"
echo "SERV_STATE: $SERV_STATE"

if [ "$HOST_STATE" = "$MYHOST" ]; then
    if [ "$SERV_STATE" = "started" ]; then
        echo "Running [script name here]"
        echo "$DATE - mysql_service $SERV_STATE on $HOST_STATE :: Running [script name here]" >>$LOG
	#Here's where we run our script
        #/usr/local/bin/myback_parallel.pl > /dev/null
    fi
fi

echo "DONE"